Fountain pen



C. A. HAlST FOUNTAIN PEN March s', 1927.

Filed May 20. 1926 ii i! Patented Mar. 8, 1927'.

uNlITEDffsTATuse P 1,620,345 Are-@Nreprice.

"'CHA'RLES'AJ I-IIST, OFFRESNO,CALFORNIA.

.FOUNTAIN PEN.

g Application l'ed May .120,

adjustable after/charging, so that the ink` may be readily :forced to the pen 'point to j avoid thenecessity of shaking theypen, as is socommon in 'devices 'otthis'charactergl and to provide a' construction .iniwhich the`v charging elementand its associated' parts is rreadily `removable from thefbarre'l topernnt the ready` .cleaning of both the charging elementfand the barrel.

With this purpose in view, the invention consists in a construction and combination of parts of which a preferred embodiment is illustrated in the accompanying drawings, wherein:

Figure 1 is a side elevational view of the invention, the guard cap for the pen point being broken away.

Figure 2 is a central longitudinal sectional view.

Figure 3 is aI transverse sectional view o n the plane indicated by the line 3 3 of Figure 2.

Figure 4 is a transverse sectional view on the plane indicated by the line 4 4 of 30 Figure 2.

The barrel 10, which is of tubular form to provide a reservoir for the charge of ink,

is interiorly threaded at both ends, the lower or forward end receiving the plug 11 which is exteriorly threaded, as indicated at 12, for engagement with the interior threads of the barrel. The outer end of the plug is recessed to receive and support the pen 14 which, when not in use, is shielded or covered by the cap 15 threaded to engage the exterior threads at the outer end of the plug, as indicated at 16; Communication between the pen and the interior of the barrel is effected by means of a duct or channel 17 formed axially through the plug.

The charging means consists of a plunger 18 snugly fitting the barrel and frictionally engaging the'interior wall surface thereof, this plunger being mounted on an extension stud 19 which passes centrally through the plunger, and seated against the outer lor lower `tace of the latter is a washer 20 abutting a diametrical fastener 21 extending through the stud. The stud is formed as an integral axial extension of an interiorly threaded stem 22, the sleeve being connected 1926. Serial No. 110,420.

with a screw 23 movableinto and out of the sleeve by relative angular or -turning movement of the two and therefore providing for axially extending or'contracting the plunger actuating means whichconsist of both the sleeve ,fand the screw.

The screw 23 at itsupperjend is reduced, as indicated at 24, whereit passes` slidably Vthrough a plug 25., the latterv beingexteriorly `threaded, and engagedv with the interior "threadsat the remoteenjd of thebarrel from the ,plug 11. Thisplug 25"-serves as a removable closure for -4the barrel at' its end when it is desired to removethe'ch'arging means, the plug having diametrically Vdisposed sockets 26 engageable with pins 27 projecting from the lower face of a turning key 28, the latter being axially movable of the reduced portion 24 of the screw to either engage or disengage it from the cross 4sectionally angular portion 29 of the latter,

the screw being headed, as at 30, to provide an abutment for the turning key when engaged with the angular portion.. Obviously, when the key is engaged with the angular portion, it is disengaged from the plug 25 and turning movement then imparted to the key will result in rotating the screw and thus extending or contracting the plunger operating means, since the frictional engagement of the plunger with the wall of the barrel will prevent turning mov-ement of the plunger and the sleeve 22 with respect to the barrel with refer-ence to which the screw moves when being turned by the key 28.

Assuming the device to have been charged, the plunger operating means will be in the contracted position where the upper or rear end of the sleeve will abut the inner face of the plug 25. The space between the plunger and the plug then defines the ink chamber. Then the ink does not reach the pen freely because of a long period oiE disuse of the device, it may be readily started by shifting the key into engagement with the cross sectionally angular portion 29 and, being turned in a reverse or anti-clockwise direction, will serve to advance the plunger 18 toward the plug 11 and thus lorce the ink to the pen. When the contents of the barrel has been fully used up,the actuating means of the plunger will be in the full ext-ended position and in charging the reverse operation may b-e performed; or the plug 25 may be disengaged from the barrel and the plunger extracted with the actuating means in extended position, When the screw may be rotated to Jfull telescoped position Within the sleeve and the plug then attached.

A cap 31 is provided to enclose the key 28,

this cap being perpherally reduced,` as atV and a pen point carried at one end thereofV and in communication With the interior of the barrel, a plunger mounted in the barrel, actuating means for the plunger comprisingr an interiorly threaded sleeve connected with the plunger and a screw engaging' and telescoping said sleeve, a plug in the barrel at the remote end from the pen and supporting one end of the screw, and means for actuating the screw, said means comprising a key permanently mounted on the screw and axially movable thereof to lock it against angular movement With respect to the screw or to tree it trom such movement.

2. A fountain pen lia-vingr a hollow barrel and a pen point carried at one end thereof and in communication with the interior oi the barrel, a plunger mounted in thev barrel, actuating means for the plunger comprisingan interiorly threaded sleeve connected with the plunger and a screw engaging' and tele scoping said sleeve, a plug in the barrel at the remote end from the pen and supporting one end of the screw, and means tor actuating the screw, said means comprisingr a key permanently mounted on the screw and axially movable thereof to lock it against angular movement with respect to the screw or to free it from such movement, said key having pins engageable in sockets in said plug to rotate and detach the latter when in unlocked position from the screw.

In testimony whereof he aiiixes his siginture. CHARLES A. HALST. 

